If you buy more than 4pcs at a time, you will get a 6% discount and the system will automatically give you a discount.

Parallel bars engine with LED lights, parallel bars engine without led lights, but still can generate electricity

Product Name: DIY Stryn engine type steam power.

Material: Metal.

Packing method: self sealing bag.

This is the steam dynamic model of DIY engine in Stryn, and the ability to do exercises.

You can show off to your little friend. " Look, I’m really great! I made it myself! "

This model is a little difficult to install.

It is a mode of training children’s ability and mental ability. Installation requires patience, patience and patience.

Note: 95% alcohol, no water, no oil.

No use, kerosene, gasoline, oil, wine, candles.

Attention: alcohol needs to be done by yourself.

1. Alcohol burns more when used.2. Use 95% alcohol3. Do not add water or fuel.4. Burn for 2 minutes5. Kerosene, gasoline, lighter oil, liquor and candles should not be used.6. Turn the flywheel to help start before starting.7. Please note that if the belt is too tight, it will affect the engine rotation.

Note: when you receive the package, if the glass tube is damaged, please don’t worry, we will send you a new glass tube. If you have any problems, please contact customer service. Thank you!

This engine does not need to add water, dry-burning air expands to generate power.

The greatest civilization of mankind was the first industrial revolution represented by the steam engine, so many people were curious about its principles. The second industrial revolution was represented by electricity. Aerodynamics is rich in physics knowledge, single cylinder external combustion engine. Visual engine principle puzzle toy teaching experimental equipment, love physics hair the same money to buy toys, I choose to help children learn, children themselves interested in learning is completely different from what we force to go. Hope that through this baby, students will be more interested in physics lessons.

Because the buyer’s illegal operation caused the glass to break does say the reason of express delivery, requesting free reissue, so please check carefully on the day after receiving the goods, if there is any breakage, please leave a message on the day, the next day is invalid.

Summary of product non-work:

1. Did the small tube touch the big wall?

2. Whether the small test tube touches the front or the back when turning by hand

American Cancer Society researchers analyzed CDC data and found that in states that were very early adopters of the Medicaid expansion, the rate of low-income adults ages 50-64 who were up to date with colon cancer screening rose from 42.3% in 2012 to 51.1% in 2016.

The genes identified in the study and the proteins they encode are potential targets for new diabetes medicines, and may help improve understanding and treatment of the disease, according to the study authors.

Many in pursuit of the "epic selfie" have died -- a recent study found there were 259 deaths and 137 injuries or accidents around the world between 2011 and 2017, from just three deaths in 2011 to 93 in 2017.